# Mercury vs Mistral Medium 3.5

> Mistral Medium 3.5 is the stronger model overall, scoring 39.6 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-vs-mistral-medium-3-5
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. Mercury scores higher in 2 categories and Mistral Medium 3.5 in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mistral Medium 3.5 leads 58.6 to 46.2.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 21.6% for Mercury and 41.4% for Mistral Medium 3.5.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury | Mistral Medium 3.5 |
|---|---|---|
| Provider | Inception | Mistral AI |
| Noometry Index | 37.3 | 39.6 |
| Rank | 192 | 151 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Mercury: 38.1 (#164)
- Mistral Medium 3.5: 35.7 (#208)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Coding | 1323 | 1461 |
| LMArena WebDev | — | 1263 |

## Reasoning

- Mercury: 16.8 (#288)
- Mistral Medium 3.5: 16.6 (#290)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| Kagi LLM Benchmark | 21.6% | 41.4% |
| LMArena Hard Prompts | 1284 | 1436 |
| NYT Connections (extended) | — | 12.9% |
| Epoch Capabilities Index | — | 141.42 |

## Math

- Mercury: —
- Mistral Medium 3.5: 36.4 (#113)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Math | — | 1432 |

## Knowledge

- Mercury: —
- Mistral Medium 3.5: 39.3 (#123)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Expert | — | 1431 |

## Multimodal

- Mercury: —
- Mistral Medium 3.5: 37.6 (#64)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Vision | — | 1222 |

## Multilingual

- Mercury: 41.7 (#201)
- Mistral Medium 3.5: 52.1 (#93)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Non-English | 1259 | 1405 |
| LMArena Chinese | — | 1443 |
| LMArena French | — | 1448 |
| LMArena German | — | 1453 |
| LMArena Korean | — | 1387 |
| LMArena Russian | — | 1396 |
| LMArena Spanish | — | 1406 |

## Instruction Following

- Mercury: 65.3 (#220)
- Mistral Medium 3.5: 74.7 (#87)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Instruction Following | 1238 | 1414 |

## Long Context

- Mercury: 38.3 (#193)
- Mistral Medium 3.5: 43.2 (#101)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Longer Query | 1264 | 1414 |

## Writing & Preference

- Mercury: 46.2 (#216)
- Mistral Medium 3.5: 58.6 (#113)

| Benchmark | Mercury | Mistral Medium 3.5 |
|---|---|---|
| LMArena Text | 1282 | 1421 |
| LMArena Creative Writing | 1186 | 1372 |
| LMArena Multi-Turn | 1283 | 1423 |
| EQ-Bench 4 | — | 993 |

## FAQ

### Is Mercury better than Mistral Medium 3.5?

Mistral Medium 3.5 is the stronger model overall, scoring 39.6 to 37.3 on the Noometry Index.

### Is Mercury or Mistral Medium 3.5 better for coding?

Mercury scores higher on coding benchmarks: 38.1 versus 35.7 in the Noometry coding category.

### How many benchmarks do Mercury and Mistral Medium 3.5 share?

9 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Mistral Medium 3.5 has 22.